Wilo Easy Control MS-L 1x4kW Notice De Montage Et De Mise En Service page 33

INSTALLATION
DiP switch 1
Current value 0.5 A 1.0 A
Example: Required rated current 7.5 A
1.5 A + 2.0 A (DIP switch 3) + 4.0 A (DIP switch 5)
= 7.5 A
5.4.5. Winding temperature monitoring connection
Bimetallic strips may be connected for tempera-
ture monitoring.
Monitoring is self-acknowledging, meaning that
after the motor has cooled down the error is reset
automatically and the LED goes off.
Connect the wires to terminals 1 and 2 (WSK) of
the terminal strip.
NOTE
• No external voltage may be applied!
• On connecting a winding monitoring device, the
factory converter bridge must be removed!
5.4.6. Connection for level detection signal transmit-
ter
The level is detected using a float switch. Con-
nection of level sensors and electrodes is not
possible!
Insert the cable ends of the cable laid onsite
through the threaded cable connections and
secure accordingly.
Connect the wires to terminals 3 and 4 (GL) of the
terminal strip.
NOTE
No external voltage may be applied!
5.4.7. High-water protection connection
A high-water alarm can be realized via a float
switch. A visual (LED) and audible (buzzer) warn-
ing are first emitted followed by forced switch-on
of the pump. The collective fault signal is also
active.
Monitoring is self-acknowledging, meaning that
after the water level has gone down the error is
reset automatically and the LED goes off.
Insert the cable ends of the cable laid onsite
through the threaded cable connections and
secure accordingly.
Connect the wires at terminals 5 and 6 (HW) of
the terminal strip.
NOTE
• No external voltage may be applied!
• We recommend high-water protection be pro-
vided as additional fuse protection for the unit.
5.4.8. Collective fault signal connection
A potential-free contact is available via the corre-
sponding terminals for external signals (e.g. horn,
flash light or alarm unit).
• Contact: Changeover
Installation and operating instructions Wilo-Easy Control MS-L 1x4kW
2 3 4
5
2.0 A 3.0 A
4.0 A
• Terminals: 7, 8, 9
• Min. switching capacity: 12 VDC, 10 mA
• Max. switching capacity: 250 VAC, 1 A
• In case of an alarm, a drop in voltage and when
the main switch is switched off, the contact be-
tween terminals 8 and 9 is closed.
Insert the cable ends of the cable laid onsite
through the threaded cable connections and
secure accordingly.
Connect the wires according to the required func-
tion at terminals 7, 8 and 9 of the terminal strip.
DANGEr due to electrical voltage
An external voltage is applied at the terminals
for this function. this is also present at the
terminals when the main switch is switched
off! there is a risk of fatal injury! the power
supply must be disconnected from its source
before all work!
5.4.9. Switching the buzzer on/off
When the buzzer is switched on, audible warnings
are also emitted in addition to the visual indicator.
The internal buzzer can be switched on/off via
DIP switch 7:
• "ON" position: Buzzer on
• "OFF" position: Buzzer off (factory setting)
NOTE
If the battery for mains independent alarms is
installed, the buzzer cannot be switched off via
the DIP switch during a power failure, when the
main switch is switched off or if the mains plug
is pulled. To deactivate the buzzer in this case,
the battery must always be removed!
5.4.10. Switching pump kick on/off
To prevent longer standstill times for the
connected pump, a periodical test run can be
performed (pump kick function). A test run of 2 s
takes place after a standstill time for the con-
nected pump of 24 h.
The function can be switched on/off via DIP
switch 6:
• "ON" position: Pump kick on
• "OFF" position: Pump kick off (factory setting)
5.4.11. Adjusting the follow-up time
Follow-up time is the time between the float
switch "OFF" signal and the pump being deacti-
vated by the switchgear.
The follow-up time is continuously adjusted via
the potentiometer. Setting range:
• Standard version: 0...120 s
• Version S: 0...30 s
• Version O: 0...120 s
5.4.12. installing the rechargeable battery
By inserting a rechargeable battery, alarm signals
will be emitted independent of the electricity
network on power failure. An audible, constant
tone will be emitted as an alarm.
1. Place the rechargeable battery in the holder. Pay
attention to the correct polarity.
English
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